Odd question but can stress/anxiety or anything else cause my meningioma to grow? or does that just happen on its own? y do i have multiple?

Typically stable: Meningiomas are typically very slowly growing benign tumors. While uncommon symptomatically, some studies show up to 2-3% of the population may have meningiomas but do not know it. In general, there have been no specific associations made with stress. There are genetic disorders that do have meningiomas as part of the syndrome (eg neurofibromatosis, which may be associated with multiple ones).

Dr Liang provides an excellent perspective. But as he states, these are very slowly growing, and would be classified as "benign". No brain tumor's growth is affected by emotions, and specifically, stress and anxiety do not cause any change in a meningioma.